update ocata rdo2 promotion criteria
update ocata rdo2 promotion criteria

Change-Id: I6f9923b63fb159b5dc8478a1acc89230e466027d

redhat-openstack/rdo-infra,rdo-infra/ci-config,rdo-infra/ci-config,redhat-openstack/rdo-infra,redhat-openstack/rdo-infra,rdo-infra/ci-config,redhat-openstack/rdo-infra,rdo-infra/ci-config